in today video we share amazing idea that How to make 12v bike battery charger at home easy step by step with circuit diagram.
its very easy and cheapest project. i use simple 12v transformer, some diodes and one capacitor. see full video and make it same.

At the beginning of the year, Apple attempted to fully open the gates and put the smartwatch into the must-have zone, there really actually generating significant interest towards this new device.

While Pebble is all about functionality and simplicity, the Apple Watch feels a lot more friendlier and it attempts to engage people, not just be a passive gadget that you remember about it only when checking time or emails.

But did it actually manage this, is the Apple Watch worth buying? Yes and no. Smartwatches can be the future of smartphones and Apple Watch does have a lot of interesting features that do give us a glimpse into the things that may come.

Beside this, it works like a wonder right now, especially thanks to its updated software. So if you like a gadget that monitors you heart rate, tracks your steps, you can play music wireless, send people animated emoji, dictate messages, view notifications, send your heartbeat to your loved-ones and more, then you will appreciate owning an Apple Watch.

It helps you to look at your phone less, while keeping you connected, but do not forget, it's not a standard device. In order to enjoy all of its functions you need to have it connected to an iPhone (you need to have at a range of around 30 feet of your phone or you can connect through the WiFi to further extend the range).

Now let's get a more in depth view of what the Apple Watch has to offer!

Design

The Apple Watch is without a doubt an attractive watch, featuring a discreet and elegant look, with clean lines and a curved glass that unites with the curved metal. Yes, you will not find a single sharp edge.

The case is made from stainless steel (also rose gold or aluminum) and it's rather thick, but because it curves inwards, it looks thinner than it actually is. Most smartwatches are plagued by this issue and unfortunately, right now, we have to accept that the smartwatch technology has not evolved as much as we would like yet.

Still, the Apple Watch feels reasonably balanced (weighing 1.5 pounds and measuring 0.4×1.4×1.6 or 0.4×1.3×1.5 inches) and if you're a watch before, you most likely will not feel that the thickness is much of a compromise. The watch comes into two variants, a one inch and a half and a 1.3 inches case. This difference has been made in order to please both males and females, but the bigger one does have better battery life.

On the right side of the Watch you'll find the Digital Crown and a button which you can use to show or hide friends, access Apple Pay with a double click and turn the watch ON or Off.

At the base of the watch you can find the heart rate sensor and the magnetic inductive charging system (Qi compliant). There's also a tiny speaker and microphone on the left of the Watch for calling, but you will barely notice them.

Yes, the Apple Watch may be better looking than most smartwatches on the market, but it does cost a lot more.

Our Apple Watch came with three straps, a Black Sport Band, the Milanese Loop and the Leather Loop. The sport band is very comfortable, but similar to other plastic bands on other smartwatches and it has a unique clasp mechanism that you'll get used to in not time.

The Milanese Loop has a mesh-like texture and it nicely complements the metallic case, but it does feel a lot more feminine than any other strap option. It's quite flexible, feels comfortable, is easily adjustable and it is suitable for either casual or more classy clothing. The clasp is magnetic and places shut (because the bracelet is really lightweight it may be better to leave the band looser so it balances with the weight of the watch itself).

The Leather Loop bracelet also closes magnetically, it uses magnetic segments that attach to each other. But there are a few shortcomings, as we noticed some scratches on the clasp after a few days of use and you may find yourself in the position to adjust the strap through the day as it tends to slip a link or two once in a while.

Display

The Apple Watch features a 1.5in (or 1.3in for the 38mm) OLED display with a resolution of 312×390 pixels (or 272x340p) and a pixel density of 326ppi (just like the iPhone 6). The Retina display is a bit different than the one found on iPhones because Apple has chosen a flexible OLED from LG rather than the usual LCD technology.

The display is covered by a toughened Ion-X glass (for Apple Watch Sport) or a sapphire glass, both meant to protect it from scratches or minor bumps into furniture.

The OLED screen is bright and colorful, with high color accuracy and overall it is one of the most vibrant displays we've seen from any smartwatch, but still it is not as sharp as the one from Samsung Gear S (which also has a much larger color palette).

But let's focus a bit on the Force Touch technology (something new in the smartwatch world) which senses the level of force, distinguishing between light or hard presses, thanks to its tiny electrodes around the display.

It is an interesting addition that adds some more options and functionality to some apps without adding more buttons or overcomplicating things.

Hardware and Battery Life

The Apple Watch packs a 500MHz Apple S1 processor, a PowerVR SGX543 GPU, 512MB RAM and 8GB of storage (when connected to an iPhone, you can fully access its storage memory).

The watch is also equipped with a heart rate sensor, that uses both infrared and visible light LEDs along with photodiodes to determine you heart rate; there's also a gyrometer, an accelerometer and unfortunately no built-in GPS.

Also inside the case you can find a 205mAh (or 246mAH) Lithium Ion battery. It promises 18 hours battery life on normal use, 6 hours of music playback or working out with the heart monitor, 3 hours of talk time and up to 48 hours of juts checking time.

Software

The software that runs on the Apple Watch is called the WatchOS 2.0 (an updated version to the more laggier first generation) and in order to be fully operational, the Apple Watch requires an iPhone 5 or a later version.

The watch is not designed for prolonged use, it provides a better experience if used in shorter periods of time, especially because some apps are a bit slow and not many complex apps are developed (using Facebook or any other Google app on the small screen of the Apple Watch may prove undesirable in the long run).

Now, let's talk about the interface. If you swipe away, you get the watch face with notifications and Glances and if you press the Digital Crown you get access to the apps. There is without a doubt a learning curve, but after a few days of using the watch you get accustomed to the way things operate.

The watch faces have a series of new options (since the new update) that let's you change the color, add new elements or remove them.

Along the usual notifications and watch faces, you get to choose one of the single screens with quick summaries of information from apps you view frequently. To access the Glances you can either swipe up on the watch face or ask Siri to open it for you, even if it's not in your active glances list.

Watch faces and glances look pretty cool on the Apple Watch, but there's a lot more to it. You get the Taptic Engine, an innovative feature that actually taps you on the wrist when a notification arrives so you will not miss anything important, it can also be used when navigating, it can tap you on the wrist several times for left or right turns or you can use it along with the Digital Touch.

Digital Touch is a unique way of messaging which works exclusively between Apple Watches and allows you to send taps, finger sketches or your heart rate.

There's also the Apple Pay (similar to what you can find on your iPhone) which is a really great feature, if you find places that accepts this type of payment. What is does it to offer the ability to purchase goods or services with a single touch of the watch on the pay terminal (two taps of the button is all it takes to summon your card). It also works without an iPhone present.

Beside all this abundance of apps and features you get the versatile Camera remote that allows you to see a preview of your iPhone's viewfinder and even focus, set a timer or trigger the shutter.

Conclusion

So how has our experience with the Apple Watch been so far? Well, it has not been too different then with any other smartwatch. You get notifications, it allows you to keep your watch in your pocket, unless it's something important, it's more discreet, you get a gentle tap on the wrist, unlike a ringtone and overall, meeting up with friends and family is more engaging since we look less on our phone and focus more on the discussion.

The obvious conclusion is that the Apple Watch is not a must-have device, but if you can afford it it will make you life a little easier in some small aspects.

Charging my car battery with a 4 Amp battery charger.
The battery was not fully charged because I had been doing a lot of short distance stop and start driving, including some short distance driving at night.

I used a 4 Amp “Motogard” battery charger (made in New Zealand), which I purchased about 20 years ago.for around $30.

In their effort to become leaders in recycling electronics, Costco has teamed up with Gazelle.com. Gazelle is a leader in the on line electronics reuse and recycling business. What you do is, fill out an online form at the Gazelle website about the electronic equipment you are recycling. Gazelle will give you a quote on your item and if you agree then you can print out an on line free shipping label. They will even send packaging material for shipping your old electronics. As long as the value of your gadget is at least one dollar shipping is free. If they determine your electronics has no resale value, they will recycle it responsibly for free. At this time they recycle laptops, cell phones, LCD monitors, MP3 players, digital cameras, and gaming systems. They don’t recycle faxes, printers and TVs at this time. The recycling service is only available for members only.

Best Buys

Best buys have a well organized page on recycling at their website. They have set the highest standard for recycling responsibly and these standards are posted where it can easily be seen and read by the public. They recycle a wide range of electronics equipment such as T.Vs with sizes up to 32 inches, cell phones, monitors, DVDs, laptops etc… There is a $10 charge for T. Vs, monitors, and laptops but Best Buys will give you $10 gift card to offset that. They take desk top computers with the hard drive removed or they can remove it for you for a fee of $19.99.

For large electronics such as T.Vs larger than 32 inches and refrigerators they have a hauling service. All Best Buys stores have a recycling kiosk by the entrance door where you can drop of ink cartridges, smart phones, CDs, DVDS, batteries, cell phones, and Best Buys gift cards. You can bring in up to 2 items per day per household.

Best Buys have a trade-in program for gently used electronic equipment. The procedure for a trade in is written very clearly step by step at their website. You can either bring in your used electronic gadget to a store location or mail in your stuff. You will receive a Best Buy gift card for your gadget. For in store trade in they only take certain items such as Apple lap tops, iPods, PC laptops, and mobile phones. They take a lot more electronic equipment with their on line trade in programs. For on line transaction you will get a gift card within 14 days.

For T.Vs larger than 32 inches they have a free haul away service if you buy replacement equipment. You can get large T.V’s and refrigerators hauled away for a fee if you didn’t make a purchase.

Staples

Office Technology recycling

Staples web site states that you simply bring in your old office electronics and its accessories to any Staple store for recycling. All brands of office technology regardless whether it was purchased at Staples are accepted. Dell brand office technology is accepted for free. All other brands office technology such as laptops, desktop computers, printers, scanners, faxes etc… have a $10 charge. Staples have the wonderful ink cartridge recycling program where you take in up to 10 empty ink cartridges and get paid $3 for each cartridge per calendar month per customer.

Personal Electronic Recycling

Staples recycles personal used electronics for free through Collective Good, a non-profit that donates used electronics to charity organization. Gadgets such as cell phones, PDAs, pagers, and chargers are recycled for free. Staples also recycles rechargeable batteries in cooperation with Rechargeable Batteries Recycling Corporation.

Conclusion

Which one of these three electronic equipment sellers has the best recycling policy? The answer is very clearly Best Buys. Their website has a well organized, easy to understand and use recycling page. Their commitment to recycling shows and is reflected by the standard they have posted on their page. They recycle a wide range of electronic equipment including bulky ones such as refrigerators and old computers mostly for free. They have an on line and in store trade in program for gently used electronics for which you get a Best Buys gift card.

Costco has a good point in that you can trade in your unwanted electronics for a Costco gift card. But they do not recycle bulky electronics such as TVs and printers. Staples good point is they recycle a much wider range of electronic equipment and it doesn’t have to be bought at a staple store. And it is convenient to recycle with staples because you can take it in to any of their stores.

battery chargers and desulfators –
http://poormanguides.blogspot.com/2009/06/homemade-diy-battery-desulfator-charger.html
Charges any battery at a constant current. The voltage is self adjusting. Will desulfate lead acid batteries. You can change the charge current by changing out the “run” capacitor. It even fixes nicads.
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Luggage scales are a useful piece of kit to have at home to avoid issues with paying excess baggage fees. Most of the airlines set different weight allowances so it can be difficult to get it right for the frequent travellers. They are easy to use and can include a variety of features to match the specific needs.

Let’s take a look at the key features worth having on the luggage scales:

Weight capacity

Weight capacity is a major feature to consider. This needs to easily reach the maximum limits set by the different airlines. Many of the luggage scales will accept a load up to about 110 pounds, which is more than enough. Additionally, the accuracy can vary with the different units. Most have an accuracy leeway of about by 0.1 pounds. This is likely to give enough accuracy for most unless very close to the airlines permitted limit.

Screen lock

The weight lock is a user-friendly feature that will ensure the total weight of the luggage is kept on the display screen for a certain period of time. This makes it a lot easier for a single person to use the scales without having to hold the luggage and read the display at the same time.

Type of Display

The weight can be displayed using analogue or LCD. The LCD units are easier to read if the screen is backlit. Many of the low-cost models are particularly difficult to read in bright light conditions. Also, the LCD units will use more battery life. The alternative option is those built with a traditional clock dial. They do not rely on extra battery power and are still very easy to read.

Compact size

The luggage scales are typically compact in size which means they can be taken on any journey. This will give the option to weigh the luggage again before the return leg of the journey to avoid going over the permitted limited after buying souvenirs for friends or family on the travels.

Battery indicator

Many of the feature rich units have a battery indicator to give a quick reminder of the available charge left in the battery. This is great for those that travel often and need to make sure it is always ready to use.

Automatic shut down

A useful feature to save battery life is automatic shut down. This is often seen on the luggage scales with an LCD display. Most units will switch off after 30 to 60 seconds of no activity.

this is my electric scooter it runs on 48v 10a battery,my original charger has burnout so instead buying new one i modified to disconect 48v to 12v with wires,on each battery i soldered 4 wires,4 on positive and 4 on negative,i use connector in black for positive and white for negative,wires in connector are separated,another part of same connector fits in but with 4 wires soldered togeather for 12v charging,after charging is complete you disconect 12v and connect 48v,please subscribe comment and thnx for watching

Rado is a major Swiss watch brand that has been creating watches since 1917. But it was on 1957 that the brand started to make watches under the name Rado. Its takes inspiration from the tagline "if we can imagine it, we can make it", to make watches for all. They have been consistently crafting watches with brilliance, and can anticipate the prevailing trends. So they are successful in making timepieces that matches with the taste of every watch user.

Introducing ceramic in watch making :

Rado is the only brand to have used ceramic for the first time to construct watches. Later, they fused cermet and titanium with ceramic to break the usual method of making watches. Ceramic is hard substance that helps to make scratches scratchproof. Further on, they bought high tech plasma ceramic into the radar of crafting watches.

The distinguishing factor of Rado watches is that it never pauses in applying new and unique ideas to make watches. After launching ceramic built watches, Rado has also introduced ultra slim watches. It created a rage among the watch lovers. Its True Thinline collection combines the brand's slim watches.

Scintillating collections that makes you surprised :

With a gamut of versatile watch lines like Centrix, Ceramica, Coupole, Diamaster, Diastar, Esenza, Hyperchrome and others; Rado watches are the first choice for users of every taste.

Centrix :

This collection known for watches that has distinguishing structures and style. These two things are the major reasons for their gaining popularity. The dwindled, slim and malleable bracelet smoothly and sensibly holds the wrist. Its offers refined ease and finesse, as well as stubborn pleasure and poise. This collection enterprises of both gents and ladies watches that match all taste.

Centrix Gents:

Build with hard and determined ceramic, every Rado Centrix men's watch has boldness and tactility with them. Almost most of these watch have black dials. Black representations muscular strength. The steel built case models present a sizzling lustre that sparkles at the wrist of a fearless male watch user. Watches built with the mixture of gold and PVD stainless steel, or steel and rose gold PVD case have a flavor of charm as well as rock like sturdiness.

Switted with the round shaped black dials, some models have straps colored with the blending of rose gold and black or golden and black. Some pieces have grayish golden straps to produce a magnetic appeal. Shining stainless steel straps twinkle at the wrist of a watch user, while leather built straps of the watches add a mild flavor.

Other than the blackish dials, Centrix watches are also available with dials polished with multiple colors like brown, silver, gold and many more. Water resistance quality of these watches vary from 30 to 100 meters. This is an active function present in a Swiss watch. It is a property that helps to avert dangers occurred due to water and also assists observers to increase their performance level.

Centrix Ladies :

Parallel to the gents' watches, female watches of the Centrix line has similar designs and looks. With plain dials and well studded diamonds, every ladies watch increases the glamor value of a good looking and smart lady. Some additional colors like mother of pearl and champagne have been included to varnish the dial of these pieces. Women are fond of gold, so gold plated straps are used to bind the case of these watches. Date display counter is placed at the right side of the dial. It shows the current date and keeps you updated.

Both quartz and automatic movement is loaded with the ladies Centrix watches. Quartz and automatic movement maintains the preciseness of these pieces, but pieces with quartz movement needs a battery that must be replaced within a certain extent. Automatic movement included watches does not require battery, it charges with the natural oscillation of the wearer's hand.

Plethora of active features like tourbillon makes the watches very accurate. Luminous hand functions helps to glorify the wrist of a user, while the skeleton dial enables you to see both sides of a watch dial. Other regular features like analogue display, day date and date display is available with these attractive Centrix models.

Coupole :

The different factor factor of Coupole watches is that it has clock like small and medium sized dials. It helps in increasing fashionable attractive of the pieces. This collection has watches for men as women.

Coupole Gents:

Calm and composed, men's watches of this collection perfectly represent the solid attitude of a muscular male watch wearer. Its strong steel base makes the watches perform longer. All of these watches have circular dials polished with various colors like white, silver and others. Toughly gripped straps are built with many substances like stainless steel, leather and two tone. Leather straps presents thinness, two-tone strap produces a diversifying effect and the stainless steel strap helps the pieces to glorify the wrist of a watch user.

Diamonds have coated in some models. It lifts the dignity of a dignified watch user. Its water resistance property ranges within 30 to 50 meters. Function like date display is located at the right side of the dial. It exhibits the prevailing date.

Coupole Ladies:

Sophistication is at its best in these gorgeous and stylish ladies watches of Rado Coupole collection. Design of the watch straps are like chains. This is an example of the brand's application of new ideas. There is a conventional flavor in all the models of the line. Along with it, their looks are also impressive. It has the ability to snatch your attention. Ivory is additional color that has been used to varnish the dial of these watches and make them ideal to wear on every occasion.